Nonlinear Coupled in-Line and Cross-Flow Vortex-Induced Vibration Analysis of Top Tensioned Riser

LI Xiao-min; GUO Hai-yan; MENG Fan-shun

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Nonlinear Coupled in-Line and Cross-Flow Vortex-Induced Vibration Analysis of Top Tensioned Riser

机译：非线性耦合在线和横流涡旋诱导的顶部张紧立管的振动分析

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摘要

The fluctuating forces of the fluid exerted on the top tensioned riser (TTR) in the in-line and cross-flow directions are both modeled by van del Pol wake oscillator model and the nonlinear coupled dynamics of the in-line and cross-flow vortex-induced vibrations (VIV) of the riser are analyzed in time domain in this paper. The numerical simulation results of the riser's in-line and cross-flow displacements and curvatures are compared with experimental measurements and the comparison shows the validity of this method in modeling some main features of the riser's VIV. Finally,the effects of the riser's top tensions and internal flow velocities on the coupled vibrations of the riser are investigated.

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《中国海洋工程（英文版）》 |2010年第4期|749-758|共10页
作者
LI Xiao-min; GUO Hai-yan; MENG Fan-shun;
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作者单位

College of Engineering Ocean University of China Qingdao 266100 China;

College of Marine Geo-science Ocean University of China Qingdao 266100 China;

College of Marine Geo-science Ocean University of China Qingdao 266100 China;

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收录信息中国科技论文与引文数据库(CSTPCD);
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Nonlinear Coupled in-Line and Cross-Flow Vortex-Induced Vibration Analysis of Top Tensioned Riser

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